Relay.



N. Hf SUREN.

RELAY.

APPLICATION man FEB. 1o. ma

' U'Nlrrnn sfrafrns rafrsrrr onirica lvAJrIerAlvrV H. simEN, or, NEEDHAM, MASSACHUSETTS, Assistme To GAMEWELL FIRE .ALARM TELEGRAPH COMPANY, YORK. I

mascia.

A"02E NEW `YORK, N. Y., A CORPORATION OIEf NEW RELAY.

Specification of Letters Patent.

tatcnted Jry 13.1915.

Application filed February '10, 1913. Serial No. 747,322.

' To altgwlmm it may concern Be it known that I,.NA'rii.-\N Il. Sturm', a citizen of the United States, residing at Needham, in the county of Nortolk'and State ot' lilassachusetts, have invented an Improvement in Relays, of which the following is a specitication. i

This invention relates to an improvement in relays adapted for use in signaling systems.-

The object of the invention is to provide a relay especially adapted for use in controllingthe circuit o'f an electrically operated whistle, horn, signal-recorder and other devices employed for fire-alarm and other signals, "by which vthe blasts of the whistle and hornand the dashes of the signal-recorder will have a predetermined and uniform length, irrespective of the 4duration of the. long breaks of the controllingcircuit vproducedv by the signal-transmitter Aor any other cause,and theblasts of the whistle, horn and dashes of the recorder will be of a length corresponding with the duration of the short breaks of the controllingcircuit produced by the signal-transmitter or-any other cause. Thus a single relay bodying this invention may be employed to control one or more local circuits, eachy con- UJ taining one or more signal-receiving instruvments of any of the well kno-Wn or suitable forms. l

vIn carrying out myy invention I employ an electro-magnet as a relay-magnet, which is adapted toA respond to the makes and breaks of a controlling-circuit, having an armature for controlling the movement of i a movable contact-member inone direction and a timed actuating-device associated therewith for controllingthe movement of 'said contact-'member in lanother direction,

spring, the circuit said movable contact-member being adaptedy for coperationl with a stationary contactmember or members vfor contro-lling one or lmore relay-circuits 'which control the operation of a Whistle, horn, signal-recording and other signal-responding and signal-re- \ceiving instruments. The timed actuatingdevice isset in condition to operate by a movement of thearmature. In case the relay-magnet 'is'arranged in a Aclosed circuit "it will,become-.denergized upon` a break in said circuit, and upon retraction of its armature the movable contact-member will he movedimmediately into engagement with Atary side elevation showing the stationary contact-members, thereby closing the relay-circuits, and the timed actuatiingdevice will be set in condition to operate, and will immediately thereafter begin to move said movable contact-member out of engagement with said stationary contact-member, and in case the break in said f circuit is of long duration will complete such movement at the end of a predetermined period of time, thereby insuring a closure of the relay-circuitl for a predetermined length of time in response to a break of as long or longer duration than said`predetermined lcngth of time; and in case the break-in Said circuit is of short duration such movement of the timed actuating-device will not be completed before it is returned to'normal vposition upon attraction of the relay-armature, thereby insuring a closure of ther relay-circuit of a length corresponding with the length of the short break in the controlling-circuit.I

For simplicity of `construction'I employ the retractile-spring for the armature as the actuating-spring forthe timed actuatingdevice.

In the accompanying drawing, Figure 1` tion of the parts when the contact-mennbers are separated by" the actuation of the through the relay being still broken.

As illustrated in the drawing, 10.1epresents a pair of electromagnet-coils which are electrically connected together and to binding-posts 12, 14, mounted upon .an insulating base 15, and any usual or suitable form of signal-transmitter is or may be employed y'for controlling a. signaling-circuit which is connected to' said binding-posts l2 and 14. An armature 1G cooperates with the coils 10, and is carried by an arm 1,8, fast' upon a pivot-shaft 2G, journaled in conical recesses :formed Ain screws QQ threaded through ears 24 provided at .the opposite ends of a plate 26, said 'plate being mounted uponthe upper ends of the coils l0, or otherwise supportfalg-jv Depending from the shaft 20 is an arm 28, which is bifurcated at its lower portion and carries a transverse bar 30; .The bar 30 is provided at each end with a sleeve 31, 32,

insulated therefrom by an insulating bushing 34, said sleeves carrying platinum contact-strips 35, 36, respectively. The bar 30 with its contacts constitutes the movable acontact-inember. As here shown the contact-strip 35 is adapted to engage stationary contact-members 38, 39, and the contact-strip 36 is adapted to engage stationarycontactmembers 40, 41, mounted upon the base 15.

' 15 The members 39 and 41 areconnected with binding-posts 44 andf 45, respectively, and the members 38 and 40 are connected to binding-posts 46 and 48, by conductors 49, 50, respectively, passing along the under side of the base 15.. Thus, as here shown, said movable contact-member' is arranged to control two local or relay-circuits, but any other number of local 'or relay-circuits may becontrolled by it, as may be required. a A retractile spring 52 is connected at its upper end toa screw 54, which projects laterally from the upper end,of the arm 28, and also acts as a regulating adjustment by 1engtl1ening and shortening, and the lower end of s0 said sprin is connected to air ear 56,- which projects la erally from alever 58, fulcrumed in a slotted post 60 mounted'upon aledge 62, whichprojects upwardly from the base 15. When the magnet-coils 10 are energized, as

I shown in Fig. 1, the armature 16 is attracted,

and the movable contact-member 30 is swung away from the stationary contact-members,

and the spring 52 is placed under tension.

When the magnet-coils 10 are denergized,

the armature 16' is permitted to retract under the action of the spring 52, and the arm 28 with its transverse bar'30 and contact-members' is swung inward, so that the contactstrips or members 35, 36 engage their cooperating stationary contact-members, 38,

l39,.and 40, 41 respectively, to close the local or relay-circuits.

In order to control the length of time `tduringwhich the contact-members 35, 36,4

i 350. are in circuit-,closing position, and consequently regulate the length ofthe blastsfof fthe whistleand horn, as well as the dashes of the recording-instrument, a timed-actu-- ating device is provided for said contact l ffmembers .which will now be described.

' A latch-'70 is loosely mounted .on the rod 30, `and rests upon and is slidable along the' jbotfomof.- the slot 71, in the post 60. The

fend 72' of the'latch 70 is adapted to-be en- '60' gaged by a linger 74, which projects down- 1 i .-.Wardly-from the lever-58. A finger 76 projects diagonally upward from the lever 58, and is adapted to be engaged by a finger 78, which projects laterally from the arm 2,8, Q5, when thearmature 16 is in 'attracted posi- '10.'is closed by the signal-timnsmitterth tion, thereby holding the lever 58 -in elevated ,v position with the timed-actuating device set in condition to operate. j .An escape-wheel 8G is atiixed to a shaft 82, f l journaledat its ends in conital sockets "7o i formed in the ends of screws 84, which are threaded through the side-arms S6 of a yoke 88, V,mounted upon an insulatinglledge 90, which projects upwardly from the hase 15.

` A toothed pinion or ratchet-Wheel 92 is also 75 afiixed to the shaft 82, and is engaged by a toothed pawl 94 pivoted to the end of the lever v58. This 'pawl is held in engagement vwith said'ratchet-wheel by a coiledspring 66, connected at one end to said pawl and at so its other 'end to said lever. When the lever 58 is swung'dowiwardly by the spring 52,

upon retraction of the armature-16 and re moval of the prop 78, the pawl 94 causes the ratchet-wheel 92 torotate, and with it the 35 escape-wheel 80. 'The speed of rotation of the escape-wheel 8O is controlled byel palletI 98, secured to a shaft 100, journaled at its ends in conica-l sockets formed in the ends of screws 102, which are threaded through the 9o side-arms 86. A pair of weights 104 are 'adjustably mounted on arms 106, whichare affixed to and project radially from the shaft 100. By adjusting these weights toward Vor, from their center of oscillatiomtherapidity at,y o'f oscillation 4of the pallet'98 may be varied and consequently tho speed of rotation of the escape-wheel and shaft 82. The 'speed ofrotation of the escape-wheel 80 determines" j the speed of the downward movement of the `1G10 pawl 94' and lever 58. During downward] y lnovelnent'mc the lever 58 its finger 74'engages and moves longitudinally the latch 7 0,:

and thereby positively moves the movable contact-member out of engagement with theIv stationary contact-members, but the A time` consumed in thus' moving the movable contact-member is determined by the speed of ,l downward movement of the lever 58. l When the circuit through the magnet-coils armature 16 is attracted; the inger 78 engages the finger 76, and raises the lever 58I j and .with it the pawl 94; the spring 52`is`i1=` placed under increased tension; the movable contact-member is moved away fromthe'stationary contact-members, and the end 72 of the latch 70 is disengaged from the linger 74.

This is.the;normal position of 'the parts, as shown in Fig. 1', the signaling-circuit being 120' closed.

` When the circuit through the magnet-coils 10 is broken, the first action of the spring 52 is to swing. the armature 16 into its uppermost position, as shown in Fig. 4, and to swing the contact-members 35, 36 into en gagement with the stationary contact-mem' bers 38, 39, and 40, 41, respectively, to Iclose the local vor relay-circuits, and also to bring the end' of the latch 70 into engagement with 130 the finger 74. Thereupon the timed-actuating-device immediately commences tooperate, that is to say, the spring causes the lever 58 to move downward-and thereby actuate thev timing-mechanism which is driven bythe pawl 94; and as said lever 58 is lowered the tinger 74 pushes the latch 70 toward. the right, thereby moving the contact-members 35 and 3G away from their stationary coacting members to open the local or relay-circuits, and the armature lt is moved slightly nearer the poles-of the magnet, shown in liig. 5, where it remains until attracted upon energij/,ation of lthe magnet-coils, when said operation may be repeated.

Upon breaks of the controlling-circuit of. the relay ot' long duration, that is to say, of as long or longer duration than the .predetermined time ot' movement of thetimed actuating-'device the movable contant-ineinber will be positivelyy moved rto disengage the sta ti onary contact-members, thereby closing and subsequently opening the local or relay circuit or circuits at the end of a predetermined'period of time. Upon breaks of said controlling-circuit of short duration,

'that is to say. of shorter duration than the predetermined t'ime of nioveinent ot' the timed actuating-device, the movable contactmeinber will be positively moved but a short 'distance by the actuating-sprlng 52 before the armature-16 is again attriarted, whereupon the movable contact-mender is positivelymoved. out of engagement with the stationary coiitaet-members and the lever 5H is raised and returned to normal elevated position quickly bv the finger Tf1' engaging the tingeii't'i' and lifting said lever, so that 'the local or relay-circuit or circuits are 'closed and subsequently opened in accordance `with or for periods of time coextensive with the length of the breaks of short duration.

Iclaim:-

l. 1n a relay, the combination ot a relay-l magnet, armature, and a circiiit-eoiitroller for .a local circuit, the movable-member of which is responsive to retractive and attractive moven'ients of the armature, respectively to engage and subsequently disengage its fellow-member, and a timed actuating-means associated with said movablemember for moving it to disengage its fellow member at 'the end of a predetermined period of time in case the armature remains retracted, substantiallyas described.

2. In a relay, the combination of a relaymagnet,'armature, and a circuit-contri'iller for a local circuit, the movable member oft' which is responsive to retractive.and attractive movements of the arn'xature respectively to enga-ge and subsequently disengage its fellow member, and a time actuatingmeans associated with-said movable member arranged to permit such movements of the. ino 'able member and also to move said member to disengage its fellow member at the end of a predetermined period of time in case,-A the armature remains retracted, substantially as described.

3. ln a relay, the combination of a relaymagnet, armature and a circuit-controller, the ino cable-member of which is moved by said armature to engage and subsequently disengage its fellow member in response to short open-circuit conditions of the controlling-circuit of the relay-magnet, and timed ,actuating-means associated with said movable-member anda'rranged to permit such movements of the movable member and also to move said member to disengage its fellow member at the end of a predetermined period of time corresponding substantially with the short open-circuit periods of the conti-oiling-circuit tiponthe occurrence of a prolonged open-circuit condition of the con trolling-circuit, whereb)T all closures of the circuit controlled by the circuit-controller will be of substantially the same duration, substantially as described.

4. In a relay, the combination ot' a relaymagnet, armature, stationary contact-members, a movable contact-member associated with said armature and movable upon retraction of said-'armature to engage said stationary contact-ineinbers and uponA attraction thereoic to disengage said stationary contaet-members, a' timed actuating-means `associated with said movable contact-member and a ri'fnged to move said member to disengage the stationary contacts at the end ot a predetermined period ot' time in case said armature remains retracted, substantially as described.

ln a relay. the combination of a relaymagnet, pivoted armature, stationary contact-members and a ontact-nieniber connected with said armature and movable upon retraction and attractionthereof, respectively@ to engage and disengage said stationary contact-meinliers, atim'ed actuating-device associated with said'movable contact-member and arranged to move said lmember to disengage the stationary contactmembers at the end of a predetermined period ot' time in ase said armature remains retracted, substantially as described.

(3. In a relay, the combination of a relay- 12ersY mal upon attraction of the armature, sub- A stantially as described.

7. In a relay, the combination of a f'elay-- magnet, pivoted armature, stationary contact-members and a contact-member connected with said armature and movable upon retraction and attraction thereoi".v respectively, to engage and disengage said stationary contact-members, a timed actuating-device associated with said movable contactmember and arranged to more said member to disengage Athe stationary contact-members at the end of a predetermined period of time in case said armature remains retracted, said L movable contact-member having means to a predetermined period of time in case said armature remains retracted, said latch permitting attractive movement of the armature independent of the timed actuatingmeans, substantially as described. f

9. In a relay, the combination of a relaymagnet, armature, and retractile spring, a' l t .timed actuating-device, and a movable contact-member associated with said armature 40 and timed actuating-device, said member being moved in one direction upon retraction of said armature, and moved for a portion of its travel inthe opposite direction by'sa'id` timed actuating-device and for the remainder of its travel by the" attraction of said armature, substantially as described. c 10. Ina relay, a relay-magnet, armature and retractile spring, a movable contactmember associated with said armature and responsive to a movement thereof in one directionvto closea relay-circuit, a pivoted arm-- arranged for engagement With said contactmember, means to connect said arm with said retractile-spring whereby said spring acts to move said arm to move the contactmember to open the relay-circuit, and means to cause slow movement of said arm during ."such time, substantially as described. `\11.v In a relay, a' relay-magnet, armature '60 and retractile spring, a movable contactl member associated with said armature and responsive to a movement thereof in one direction to close a relay-circuit, a' pivoted arml for engagement with sa1d.con tact-.

arranged member to which sald retractile spring 1s arranged to permit 'such movementspt the,

connected, whereby said 4arm is moved by said spring to move the contact-member to open the relay-circuit, and means to cause slow 4movement of said arm during such time, substantially asV described.

12, In a' relay, the combination of a relaymagnet, armature, and a circuit-controller for a. local-circuit, the movable-member of which is responsive to Vretractive and attractive movements of the armature, respectively, to engage and subsequently disengage its fellow-member, and a timed actuatingmeans associated with said movable-member' arranged to permit such Vmovements of the movable-member, and also to' move said member .to disengage its fellow member at the -end of a predetermined period of time in case the armature remains ret lacted, said timed actuatingmeans having a spring for` operating it yvhich is arranged to be enerl8E- gized by the. relay-magnet,substantially as* described.

13. In a reiay, the combination of a relaymagnet, armature, and avcircuit-controller for a local-circuit, the movable-member of ywhich is responsive to retractive and attractive movements of the armature', respectively, to engage and subsequently disengngc its fellow-member, and a timed actuating-means associated with said movablememberl arranged to permit suoli movements of the movable-member, and alsok to move said member to disengage its fellow member at the end-of a predetermined period of time' An case the armature remains retracted, said timed actuating-means having a normally ener izedactuator .for operating it, substanf tially as described.

i4. In a relay, the combination of a relaymagnet, armature, and a circuit-controller 105 for a local-circuit, the movable-'member of which is responsive to' retractive and attractive .movements of the armature, respectively, to engage and subsequently .disen-. ga: its fellow-member', and a timed actuat- 110.-

in -means associated with said movablem ber arranged to permit such movements oflthe movable-member, and also. to move said member to disengage its fellow-member at the end of a predetermined period of time 11,5 inpase the armature remains retracted, seidy ted actuating-means having its actuator f rrangedto be energized automatically, sub-- antially as described. 4 15. In a relay, the combination ofl a relay- 12 m agnet, armature, and a circuit-controller -yfor a local-circuit, the movable-member-f which is responsive to retractii e'. and at-, tractive movements of the armature, respec-4v j tively, to engage and subsequentlvdisengage, its fellow-member, andatiiedactuatig v -f means associated with said movable-member movable-member, and alsoftd'move sai memberto disengage its *fellow-memberthe end of a predetermined period of time in case the armature remains retracted, said timed ectuatingmeens including its actuator being arranged to be reset by tlierelay magnet, sulostanti:illT as described.

j 16. In ereley, the combination of a. relay* magnet, armature, and circuit-controller for a locallcircuit, the movable-member of which is responsive to retractive and attractive movements of the armature, respectively, to engage and subsequently disengege its fellow-member, anda timed actuatingmeons associated with said movable-member arranged to permit such movements of the movable-member, and also to move said member to disengage its ellow-member at the end of le predetermined period of time in case the armature remains retracted, said timed actuating-means including its actuator being arranged-to be reset upon attractive movements of seid armature, substantielly as described.

17. In a relay, the combination of a relaywhich is responsive to retractive and ato troctive movements of the armature, respectively, to engage and subsequently disengage its fellow-member, and e timed actuating-means associated with said movablemember arranged to permit such movements of the movable-member, and to, move saidl member to disengnge its fellow-member at the end oi' n predetermined period of time in case the armature remains retracted, said timed actuating-means having its actuator arranged to be energized upon the resetting of said actuating-me:1ns,4 substantially as described. f

In testimony whereof, I have signed my name to .thisspecificitiom in the presence of two subscribing witnesses.

` NATHAN H. SUREN.

Ntnessesr B. J. Noyes, H. B. DAVIS. 

